sr20det problem driving me crazy - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

bejota180sx · 07-24-2007, 11:09 PM

ive searched all around the place havent found anything that could be exactly my problem or anything that could help me ive tried almost everything...

the problem is driving me crazy!!

whenever i leave the car like more than a few hours turned off when i turn on the car it starts fine... a few days ago it started starting really rough and would shut down and when i turned it on again it started fine... but the problem ive been having for so many months now and its just driving me crazy is that after a few hours of it being off when it starts it idles fine but when i hit the acceletor it just sputters and the rpms go really really low it wont rev it just sputters in a little low rev like if it was going to shut off... if i hit the pedal really lighty it the revs will go up a little sputtery and when i press down just a little bit more it just does that thing again... if i rev it really really slowly it will go up and will rev fine after about 2600rpm or sumthing close to that... the problem fixes itself after about a few minutes of leaving it on... when i gets warm... about 10 to 15 minutes or something like that... i already changed the coolant temp sensor that goes to the ecu thinking it would be that since everyone said that was the problem but it didnt fix anything... its driving me crazy!!! i changed the maf also just in case and it still does the same thing...

any help i can get will be thank so much im desperate to get this problem fixed its driving me crazy...

the mods to the car are
1990 240sx fastback
redtop sr20det
front mount intercooler
battery in trunk
boost controller
walbro 255 fuel pump

everything else is stock...
and the boost controller and intercooler and battery where installed AFTER the problem started just in case you think one of those things might be the problem...

07-24-2007, 11:09 PM	#1
bejota180sx Zilvia FREAK! Join Date: Feb 2006 Location: Puerto Rico Posts: 1,173 Trader Rating: (5) Feedback Score: 5 reviews	sr20det problem driving me crazy ive searched all around the place havent found anything that could be exactly my problem or anything that could help me ive tried almost everything... the problem is driving me crazy!! whenever i leave the car like more than a few hours turned off when i turn on the car it starts fine... a few days ago it started starting really rough and would shut down and when i turned it on again it started fine... but the problem ive been having for so many months now and its just driving me crazy is that after a few hours of it being off when it starts it idles fine but when i hit the acceletor it just sputters and the rpms go really really low it wont rev it just sputters in a little low rev like if it was going to shut off... if i hit the pedal really lighty it the revs will go up a little sputtery and when i press down just a little bit more it just does that thing again... if i rev it really really slowly it will go up and will rev fine after about 2600rpm or sumthing close to that... the problem fixes itself after about a few minutes of leaving it on... when i gets warm... about 10 to 15 minutes or something like that... i already changed the coolant temp sensor that goes to the ecu thinking it would be that since everyone said that was the problem but it didnt fix anything... its driving me crazy!!! i changed the maf also just in case and it still does the same thing... any help i can get will be thank so much im desperate to get this problem fixed its driving me crazy... the mods to the car are 1990 240sx fastback redtop sr20det front mount intercooler battery in trunk boost controller walbro 255 fuel pump everything else is stock... and the boost controller and intercooler and battery where installed AFTER the problem started just in case you think one of those things might be the problem... Last edited by bejota180sx; 07-25-2007 at 09:57 PM..